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Small Mersenne Prime Factors
Prime numbers of the form Mp= 2p − 1 are called Mersenne primes. For Mp to be prime, p must also be prime.
Any factor q of a Mersenne number 2p − 1 must be of the form 2kp + 1, where integer k ≥ 0. Furthermore, q must be 1 or 7 mod 8.
Exponent Prime Factor Digits Year
12731039254620798 ~1987
12731399254627998 ~1987
12731417763885038 ~1988
127316295092651619 ~1990
127316811018534499 ~1988
12731681315745688910
12731723254634478 ~1987
12732143254642878 ~1987
12732277763936638 ~1988
127323112291815999 ~1989
12732383254647678 ~1987
12732431254648638 ~1987
12732563254651278 ~1987
127327631273276319 ~1988
12732959254659198 ~1987
127330671018645379 ~1988
12733151254663038 ~1987
12733691254673838 ~1987
12733997764039838 ~1988
12734171254683438 ~1987
12734573764074398 ~1988
12734783254695678 ~1987
12735419254708398 ~1987
12735539254710798 ~1987
12735713764142798 ~1988
Exponent Prime Factor Digits Year
12735743254714878 ~1987
12735937764156238 ~1988
12736067254721340110 ~1991
12736079254721598 ~1987
12736151254723038 ~1987
127361694839744239 ~1990
12736571254731438 ~1987
12736679254733598 ~1987
12736943254738878 ~1987
12737099254741998 ~1987
12737243254744878 ~1987
12737639254752798 ~1987
12737759254755198 ~1987
12737773764266398 ~1988
12738059254761198 ~1987
127383672038138739 ~1989
12738371254767438 ~1987
12738443254768878 ~1987
12738623254772478 ~1987
12738673764320398 ~1988
12738959254779198 ~1987
12739141764348478 ~1988
12739159114652431110 ~1991
12739271254785438 ~1987
12739691254793838 ~1987
Exponent Prime Factor Digits Year
12739717305753208110 ~1992
12739763254795278 ~1987
12739799254795998 ~1987
127403391019227139 ~1988
12740603254812078 ~1987
12740699254813998 ~1987
127407111019256899 ~1988
127411731783764239 ~1989
127414333057943939 ~1989
12741539254830798 ~1987
12741779254835598 ~1987
12741983254839678 ~1987
127420031274200319 ~1988
12742139254842798 ~1987
127423573058165699 ~1989
12742481764548878 ~1988
127426333822789919 ~1989
12742679254853598 ~1987
12742777764566638 ~1988
12742811254856238 ~1987
127428171019425379 ~1988
12742871254857438 ~1987
12742883254857678 ~1987
127431912038910579 ~1989
127435271274352719 ~1988
Exponent Prime Factor Digits Year
12743543254870878 ~1987
12743663254873278 ~1987
12743677764620638 ~1988
12743701764622078 ~1988
12744437764666238 ~1988
12744581764674878 ~1988
12745081764704878 ~1988
12745177764710638 ~1988
12745259254905198 ~1987
12745283254905678 ~1987
12746171254923438 ~1987
12746197764771838 ~1988
12746233764773998 ~1988
12746543254930878 ~1987
12746711254934238 ~1987
12746879175906930310 ~1991
127470291019762339 ~1988
12747131254942638 ~1987
12747239254944798 ~1987
127472391019779139
12747323254946478 ~1987
12747419254948398 ~1987
12747503254950078 ~1987
12747941764876478 ~1988
12748163254963278 ~1987
1217
GIMPS The Prime Pages FactorDb.com
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26-04-05